It’s hard to believe that a single material can be described by as many superlatives as graphene can. Since its discovery in 2004, scientists have found that the lacy, honeycomb-like sheet of carbon atoms – essentially the most microscopic shaving of pencil lead you can imagine – is not just the thinnest material known in … Continue reading When rotated at a ‘magic angle,’ graphene sheets can form an insulator or a superconductor